Method of making stockings



K RDER METHOD OF MAKING STOCKINGS Sept. 2, 1941.

Filed April 28, 1939 4 Sheets-Shes? 2 7 o Ll UH 5 .H n

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4 Sheets-Sheet 4 JDN qid" :illlllll |l Il aienied Sepe. 2, taai METHOD F MAKING STOCKINGS Kurt Rder, Chemnitz, Germany, assigner to Schubert & Salzcr Maschinenfabrik Aktiengesellschaft, Chemnitz, Germany Application April 28, 1939. Serial No. 270,669 In Germany April 30, 1938 s Claims.

The present invention relates to 'a method for the manufacture of a stocking in a single operation upon a flat knitting machine and more particularly comprises a method according to which with the loops of the middle part placed in susheel parts are made in such a manner that after the production of a certain number of rows of loops the loops of the heel parts are transferred outwardly for one or more needles and the selvage loops of the preceding rows ofi loops are placed upon the needles, which have become empty by the above described operation. To obtain this purpose narrowing points consisting of two parts, i. e. av so-called Petinet narrower is required.

According to another known method these special auxiliary devices are not required, but this method has the disadvantage that it may be used for knitting machines sinking over one needle, i. e. so-called Paget-machines only.

'I'he subject matter of the present invention is a method which may be used in connection with knitting machinessinking over two needles without requiring any auxiliary `devices in forni of special Petinet narrowers. The object aimed at is obtained according to the invention by the fact, that for the manufacture of the heel parts the loops of each second row of heel loops are alternately transferred outwardly for one needle except the loops hanging on'the innermost two or three needles and that the inner limit of the path or stroke of the heel thread carriers or guides is, each time 'after four rows of loops have been formed, reduced for the distance of two needles from one another which needles are placed in an inoperative position.

In the accompanying drawings the cycle of operations is shown..by way of example for some modications of the method according to the invention. l

In these drawings:

Fig. 1 shows 'a portion of a loop diagram of the heel parts in which for the sake of clearness all the loops are arranged in a single plane.

Fig. 2 is a diagrammatic View of the heel parts in the position they actually occupy on the needles,

Figs. 3-10 are loop diagrams showing the manufacture of five rows of loops of a heel part,-

and

Figs. 11-14 show loop diagrams of portions of a heel part in various modifications.

As may be seen from the diagrammatic illustration shown in Fig. 2 the piece of fabric which for the sake of clearness is represented in Figs. 1 land 3-14 as lying in a single plane with the needles shown in staggered relation hangs on the needles arranged in a straight line and forms a sack-like enlargement. v

After the leg of the stocking has been knitted as far as to the row of loops a, the loops of the middle part A are placed in suspension and the two heel parts B, B are simultaneously formed at both side portions, a heel thread carrier or guide each being rendered operative for each heel portion.

If the already operating thread guide or carrier is used for the manufacture of a heel part, one heel thread carrier or guide only is additionally required. y

As the manufacture of both heel parts is the same, the knitting of a single heel part only will be described in the following specification.

Fig. 3 shows that the heel thread carrier first forms the first row of heel loops b on the needles 'l-l. With the exception of the loops hanging on the two innermost needles I and 2 the' loops of this row of loops then are transferred outwardly over one needle, so that-now loops hang on the needles I, 2 and 4 8 (see Fig. 4).

Thereupon starting from the same inne'r limit of the stroke or path (needle l) the heel thread carrier performs a stroke or path in front of the row of loops o (Fig. 5) which stroke or path is larger about the distance of two needles. The loops of the row of loops c are not transferred. Owing to the fact that the last added selvage noose does not find a counter-loop to which it could be connected this noose on being pressed is not formed to a loop. In the following row of loops d in which the heel thread carrier performs the same path or stroke as .in the row of loops c (Fig. 6) the loops are again transferred outwardl.v over one needle. In contradistinction to row b, this time, however. the three inner loops hanging on the needles I, 2. 3 are not transferred outwardly so that loops hang on the needles l-3 and 5 9 (Fig. '7). In this row also the selvage noose on being pressed is not formed to a loop. because there is no counter-loop to which it could be connected.

The then following rows of loopsl C in which the v4 loops again are not transferred and in'which the heel thread carrier performs the same path or stroke as in the row of loops c and d the selvage loop is connected to the transferred selvage loop of the row d. The outer limit has been increased for the distance of two needles in each heel part.

In the following row of loops f the inner limit of the pa-th or stroke of the heel thread carrier is again arranged outwardly for the distance of two needles. The thread is presented as far as to the needle 3 only, i. e. a path or stroke is performed which is shorter for the distance of two needles as compared with the row e (Fig. 9). The loops of this row again are transferred outwardly except for the two inner loops hanging on the needles 3 and 4 (Fig. 10) so that loops hang on the needles 3, 4 and 6-|0. This row of loops corresponds to the row of loops b (Fig. 4) except for the fact that the loops hang on needles which are arranged further outwardly for the distance of two needles. The following rows of Vloops then are produced in the same manner as explained with reference to Figs. 5-8.

After four rows of loops have been knitted, the inner limit of the path or stroke of the heel thread carrier is arranged outwardly for 4the distance of two needles (Fig. 1) each time before the described knitting operation is repeated.

The manufacture of the last portion of the l heel parts may be effec-ted in any desired and known manner. The heel parts may for instance be rounded off by means of a heel cap, whereby a binding off seam is avoided, or the heel parts are pressed off which requires the production of a binding off seam.

After finishing the heel parts the foot of the stocking is produced in the usual manner by continuing knitting over the entire width of the fabric.

During the manufacture of the heel parts various changes of the loop diagram may be effected within the described cycle of operations. In all cases, however, the shape of the heel parts and in particular the nature of the connecting portions of the heel loops to the sole loops to be knitted later on remain unaltered.

For instance, the needle forming the inner limit of the path or stroke may remain unpressed in the second and fourth row of each group of heel loops each consisting of four rows of loops (Fig. 11).

In the row of loops h the needle l is not pressed so that the loop hanging on same is not knocked off in the row of loops g and forms a double loop with the newly formed noose in the row of loops h. In the same manner the needle i in the row of loops k is not pressed so that in this row a double loop is formed.

According tothe modification shown in Fig. 12 it has been assumed, that in .the row of loops n and o the needle l is not pressed so that in the row of loops o the loop not knocked off forms a double looptogether with the new noose.

In the row q of the modication shown in Fig. 13 the noose of the needle 3, formed by the transfer of the row of heel loops outwardly and causing the perforation has been transferred inwardly to the needle 2. In row s the same is true for the noose of the needle 4.

This transfer inwardly may also be effected once only in each group of heel loops, that is to say in the second row q or in the fourth row s only.

Another change oi the loop diagram may be effected by not pressing in the row of loops 'v the loop of the not transferred second row of loops u hanging on the needle which of the loops to be transferred carries the loop arranged furthest towards the interior 'so that the loop in the row of loops u together with the noose of the row of loops v is transferred outwardly as a double loop from the needle l to the needle 5 (Fig. 14).

The changes of the loop diagram according to Figs. 11-14 are repeated in the manner described after every four rows of loops. The member determining the inner limi-t of the path or stroke of the thread guide or thread carrier is moved outwardly for the distance of two needles in each case only.

The transfer outwardly over one needle may, as has been assumed in Fig. 1, be simultaneously effected on both sides in every second row of heel loops. Transfer of the loops outwardly may, however, also be effected alternately in two successive rows of loops as shown in Fig. 11a.

The increase of the outer limit of the path or stroke for the distance of two needles which is effected according to the modification shown in every first not transferred row of loops of every heel part may also be effected in every second not transferred row of loops of every heel part.

What I claim is:

1. In a method for the manufacture of a stocking in a single operation upon a flat knitting machine in which the heel parts are produced while the loops of the middle part are placed in suspension and the connection of the loops of said heel parts and the sole parts are made at right angles without requiring a seam. said method for the formation of said heel parts comprising the steps of outwardly transferring loops of every second row of heel loops alternately for the distance of one needle except said loops hanging on the innermost two or three needles and decreasing, after every four rows of loops, the path or stroke of thread guides or carriers forming said heel parts for the distance of two needles which latter are placed in an inoperative position.

2. In a method as set forth in claim l in which said outwardly transferring of loops of every second row of loops for the distance of one needle is effected simultaneously on both heel parts.

3. In a method as set forth in claim 1 in which' said outwardly transferring of loops of every second row of loops for the distance of one needle is effected on both heel parts alternately in two successive rows of loops.

4i. In a method as set forth in claim 1 in which the limit of the inner path or stroke is located outwardly for the distance of two needles after every four rows of loops, the outer limit of the path or stroke increasing for the distance of two needles in every fourth row of loops of every heel part. l

5. In a method as set forth in claim 1 in which the outer limit of the path or strokeis increased for the distance of two needles in every fourth row of loops of every heel part, said increase of the outer limit for the distance of two needles being efected'in every first not transferred row of loops of every heel part.

6. In a method as set forth in claim 1 in which the outer limit of the path or stroke is increased for the distance of two needles in every fourth row of loops of every heel part, said increase of the outer limit for the distance of two needles being effected in every second not transferred row of loops of every heel part.

7. In a method as set forth in claim 1 in which heel loops, consisting of four rows of loops, lamd KURT RDER.

the limit of the path or stroke is formed by a neepositioned on the needle adjacent the interior of dle which in every group of heel loops' consistthe loops to be transferred in the following row ing of foin` rows of loops is not pressed in the of loops, iS not pressed. and together with the second and fourth row, noose formed on said needle, transferred as a 3. In a method as set forth in daim 11n wnicn double 100D during the transfer of the loops of` a. loop of the second row of loops of each group of the third TOW 0f 100135- 

